I just listened to some of the Finale of that 2008 version on Rapidshare...and, well...I don't know what to think. Norrington takes the whole thing (so far, anyway) way too fast for my tastes, and honestly I think taking this too fast robs the Finale of some of its emotional power. I don't know if the reason he took it quickly because he was not having the strings use vibrato and thus did not want them holding out notes too long, but honestly...the fast opening and climax really rubbed me the wrong way. Was his reasoning for using almost no vibrato purely that Mahler would not have heard it? Because I would question that, as Bruno Walter's 1938 recording has plenty of Vibrato from the strings, and Walter learned the score from Mahler.
I think I'll let someone else try the new recording issued on Wednesday before I try to get my hands on a copy. I just do not think his tempo is anything like the "Slow, even holding back" (I don't feel like looking up the German equivalent at the moment) that Mahler calls for.